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Apply National Electrical Code (NEC) standards and industry best practices to residential and commercial grid-direct solar electric systems to ensure safe, code-compliant design and installation. This online solar training workshop builds upon the core concepts from PV101, expanding them to address larger, more complex grid-direct PV systems. This online solar training workshop builds upon the core concepts from PV101, expanding them to address larger, more complex grid-direct PV systems.

PV202 focuses significantly on the National Electrical Code, including interconnection calculations, grounding, workspace clearances, and disconnect and overcurrent protection sizing and considerations.

Commercial system equipment specifications including inverters, racking, and three-phase interconnection are covered; as well as site considerations for roof- and ground-mounted arrays, including layout and inter-row shading. PV 202 thoroughly addresses array sizing with various inverter configurations, in order to assess design options and optimize performance. Students will learn to evaluate system performance under various operating conditions, and identify and correct installation errors including ground-faults. This course combines class lectures with individual problem solving exercises covering common design considerations. The online course is six weeks long and covers all of the material presented in the in-person workshop.